INDEX TO SUBJECTS 
All new genera, new species and new names are printed in capital type. 
A description of the male of Sym- 
pherobius arizonicus Banks (Neur- 
optera: Hemerobiidae) , 64 
A megasecopteron from Upper Car- 
boniferous strata in Spain, 44 
A new family of wasps, 7 
A new genus and species of Neo- 
tropical horsefly (Diptera: Taban- 
idae), 193 
A new genus of the tribe Mesostenini 
from Chile (Hymenoptera: Ichneu- 
monidae), 117 
A new species of C ephalonomia ex- 
hibiting an unusually complex poly- 
morphism (Hymenoptera : Bethyli- 
dae), 151 
A new species of Eurygaster and 
notes on some little known species 
of Turkish Pentatomidae (Hemip- 
tera: Heteroptera), 144 
A new species of Ligyrocoris Stal 
with a key to the northeastern 
species (Hemiptera: Lygaeidae), 
17 
A preliminary review of Zelanophilus 
with description of a new Australi- 
an species (Chilopoda: Geophilo- 
morpha: Geophilidae) , 164 
Abacion , 97 
ANCHINEURA HISPANICA, 46 
ANCHINEURIDAE, 44 
Ants, 69, 133 
Araneae, 34, 129, 170, 180, 197, 223 
Argiopidae, 129, 180 
Australian carabid beetles XII. More 
Tachys, 22 
Ball-rolling behavior, 75 
Beetles, 22, 50, 75, 94 
Bethylidae, 151 
Bertrana hieroglyphica, 129 
Bioecology of Tingidae, 208 
Brodioptera climb erlandensis , 60 
BRODIOPTERIDAE, 59 
Canthon pilularius, 75 
Carabidae, 22, 94 
Carboniferous insects, 44, 59, 120, 240 
Catopidae, 50 
Cave beetles, 50 
C ephalonomia perpusilla, 152 
Cerocida strigosa, 170 
Charles Albert Frost: a biographic 
sketch and list of publications, 3 
Chilopoda, 164 
C hlaenius , 94 
Clystopsenella long'wentris , 10 
Coleoptera, 22, 50, 75, 94, 184 
Craspedisia cornuta, 177 
Craspedisia spatulata, 178 
Crotaphytus collaris, 109 
Cryptocerus texanus, 133 
Cyanocitta cristata, 109 
Defense mechanisms of arthropods. 
XI. The structure, function, and 
phenolic secretions of the glands of 
a chordeumoid millipede and a 
carabid beetle, 94 
Diaphanoptera, 240 
Diaphanopterodea, 240 
Dictyoneuridae, 61 
Diplopoda, 235 
Diptera, 193 
Dytiscidae, 184 
Ephemeroptera, 121 
Eurygaster chinai, 144 
Florida spiders in the rufus group in 
the genus Philodromus (Araneae: 
Thomisidae), 34 
Formicidae, 69, 133 
Further studies of the bioecology of 
the New England Tingidae (Heter- 
optera), 208 
Further studies on the habits of Cryp- 
tocerus texanus Santschi (Hymen- 
optera: Formicidae), 133 
Geophilidae, 164 
Glands, 69, 94 
Hemerobiidae, 64 
Hemiptera, 17, 144, 208 
Heteroptera, 144, 208 
Hetschkia gracilis, 172 
Horseflies, 193 
Hydrovatus inexpectatus 185 
Hydrovatus platycornis, 187 
Hymenoptera, 7, 69, 117, 133, 151 
Ichneumonidae, 117 
L gyro coris caricis, 17 
Lvgaeidae, 17 
Mecynometa globosa, 180 
Megasecoptera, 44, 59 
Mesostenini, 117 
Mexican troglobite. 235 
mexiterpes sabinus, new genus and 
new species, a Mexican troglobite 
(Diplopoda: Trichopetalidae) , 
Millipedes, 94, 235 
New England Tingidae, 208 
Neuroptera, 64 
Observations on the ball-rolling be- 
havior of Canthon p lularius (L.) 
(Coleoptera: Scarabaeidae) , 75 
On spermatic transmission in spiders, 
197 
Palaeodictyoptera, 61 
Pausias martini, 149 
